Best Free Frequency Detector Apps

3.3(6 ratings)

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This app transforms your iPhone into a powerful audio analyzer. It offers four distinct modes to measure sound frequencies, tune instruments, analyze motor speeds, and check mains stability. Advanced features include measurement history, comparison tools, and CSV export.

Frequency Detector Analyzer by NEURASYNC

Spectrum Analyzer EMF Decibel

Strong Contender

4.5(17 ratings)

FreeIn-App Purchases

Frequency Detector Analyzer screenshot 1

Frequency Detector Analyzer screenshot 2

Frequency Detector Analyzer screenshot 3

This application transforms your device into a precise sound analysis tool. It offers real-time frequency detection, visualization, and data logging for musicians, engineers, and curious individuals. Gain clarity and accuracy in understanding the soundscape around you.

FQC - Frequency Counter by Andrew Hazon

Measure frequencies & notes

Worth Considering

HzDetect Music Frequency Tuner

0.0(0 ratings)

Free

More Free Frequency Detector apps to explore

Find the frequency of any song

Detect music tuning frequencyShazam-powered song recognitionAnalyze frequency breakdown

Instantly discover the tuning frequency of music around you. This app uses song recognition and advanced analysis to reveal if a track is tuned to standard concert pitch or other frequencies, offering a new dimension to your listening experience.

Frequency: Sound Generator

(1)

free

by Lucija Jaksic

Generate sine, square, sawtooth, triangle wavesAdjustable frequency (1Hz-22000Hz)Animated sound wave visualization

Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.

(340)

Sound Decibel Meter, Spectroid

Frequency Analyzer

Real-time FFT analysisCalibrated SPL measurements32-bit float audio recording

Transform your device into a professional audio analysis tool with advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

(166)

See the frequencies around you

VisiWave

Detects sound frequenciesVisualizes sound waves in real-timeMeasures in Hertz

Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.

Device Detector: Wifi Analyzer

(8)

free

Find Hidden Devices On Network

Scan local networkAnalyze connected devicesPrivacy protection

Scan and analyze all devices connected to your local network. This essential tool helps protect your privacy by identifying everything on your network. Regular updates ensure an improved user experience.

Find the musical key of any Hz

(3.6K)

ad-supported

Frequency Detector Tool

Frequency to musical note conversionCents sharp/flat indicationIn-key analysis for selected keys

Instantly analyze musical keys from any frequency in Hertz. It displays the corresponding musical note, cents deviation, and whether it's in key with your selected musical scale. Features vocal context notes and a full frequency chart for EQ guidance.

RF Signal Detector Analyzer

Real-time signal monitoringFrequency band analysis (2.4 GHz & 5 GHz)Interference detection and categorization

This application offers real-time radio frequency signal detection and analysis. It monitors signal strength, analyzes frequency bands, and identifies interference sources. The tool provides historical data and network optimization insights for a better wireless experience.

EMF Detector-Radiation Reader

(91)

freemium

iemf,frequency detector

EMF monitoringElectromagnetic field detectionRadiation level measurement

Transform your iPhone into an EMF detector to monitor electromagnetic fields. Identify radiation levels in various environments to assess safety at home, work, or in public spaces. Gain insights to make informed decisions about your surroundings.

(319)

Stud Finder | Metal Detector

Locate Hidden Metal Objects

Magnetic detectorGold detectorMetal finder

This utility app uses your phone's magnetometer to detect nearby metal objects. It functions as a stud finder and metal detector, helping you locate hidden items by measuring magnetic field fluctuations.

Decibel Meter - Sound Level.

(1)

ad-supported

Measure Noise & Frequency

Real-time noise measurementHistorical noise chartsCustomizable sound alerts

Measure and monitor sound levels in decibels using your device's microphone. Receive alerts for high noise levels, track historical data, and calibrate for accuracy. Unlock advanced features with a subscription for professional sound analysis.

(3)

Convert between Frequency Unit

Frequency Conversion

$2.99

EMF Detector - Ghost Hunting

Detect Paranormal Activity

Metal Detector & Scanner PRO

Lets you Detect Metals around!

$0.99

This utility app transforms your iPhone or iPad into a functional metal detector using its magnetic sensor. It displays real-time readings and can alert you with a beep when unusual metal activity is detected. Enjoy an ad-free experience while exploring for metals.

Uses magnetic sensor for detectionReal-time meter readingsBeep alert option

Stud Finder , Metal Detector

(1)

paid

Find Studs & Detect Metal

Visualize sound effortlessly

Easy Audio Spectrogram

Decibel Meter: Noise Recorder

dB Noise Level & Hearing Guard